PRAXAIR INC. -- NITROGEN  -- 6830-00-577-4623
<pre>=====================  Product Identification  =====================

Product ID:NITROGEN
MSDS Date:12/01/1992
FSC:6830
NIIN:00-577-4623
=== Responsible Party ===
Company Name:PRAXAIR INC.
Address:39 OLD RIDGEBURY ROAD
City:DANBURY
State:CT
ZIP:06810-5113
Country:US
Info Phone Num:203-794-5782/800-424-9300(CHEMTREC)
Emergency Phone Num:203-794-5782/800-424-9300(CHEMTREC)
CAGE:EO188
=== Contractor Identification ===
Company Name:PRAXAIR INC.
Address:39 OLD RIDGEBURY RD.
Box:City:DANBURY
State:CT
ZIP:06817-0001
Country:US
Phone:203-794-5782
CAGE:EO188
Company Name:PRAXAIR, INC.
Address:39 OLD RIDGEBURY RD
Box:City:DANBURY
State:CT
ZIP:06810-5113
Country:US
Phone:800-772-9247; 800-PRAXAIR
CAGE:0LV01
Company Name:UNITED STATES WELDING INC
Address:1221 S CLARKSON ST
Box:City:DENVER
State:CO
ZIP:80210
Country:US
Phone:303-777-2475/818-341-2021
CAGE:0EE28

=============  Composition/Information on Ingredients  =============

Ingred Name:NITROGEN
CAS:7727-37-9
RTECS #:QW9700000
Fraction by Wt: 100%
Other REC Limits:NONE RECOMMENDED
ACGIH TLV:ASPHYXIANT; 9293

=====================  Hazards Identification  =====================

LD50 LC50 Mixture:LD50 ORAL RAT IS NOT APPLICABLE.
Routes of Entry: Inhalation:YES  Skin:NO  Ingestion:NO
Reports of Carcinogenicity:NTP:NO    IARC:NO	OSHA:NO
Health Hazards Acute and Chronic:NITROGEN IS A SIMPLE ASPHYXIANT.
    NITROGEN UNDER HIGH PRESSURE CAN PRODUCE NARCOSIS.
Explanation of Carcinogenicity:NONE OF THE CHEMICALS IN THIS PRODUCT IS
    LISTED BY IARC, NTP OR OSHA AS A CARCINOGEN.
Effects of Overexposure:INHALATION: MODERATE CONCENTRATIONS MAY CAUSE
    DIZZINESS, NAUSEA, VOMITING, LOSS OF CONSCIOUSNESS, AND DEATH.
Medical Cond Aggravated by Exposure:NONE NOTED.

=======================  First Aid Measures  =======================

First Aid:INHALATION: REMOVE SUBJECT TO FRESH AIR. RESCUE WORKERS, WEAR
    SCBA. GIVE OXYGEN/CPR AS NEEDED.  NOTE TO PHYSICIAN: NO SPECIFIC
    ANTIDOTE. TREATMENT SHOULD BE DIRECTED AT THE CONTROL OF SYMPTOMS
    AND THE  CLINICAL CONDITION.

=====================  Fire Fighting Measures  =====================

Extinguishing Media:NON-FLAMMABLE. USE EXTINGUISHING MEDIA APPROPIATE
    FOR SURROUNDING FIRE.
Fire Fighting Procedures:EVACUATE PERSONNEL. IMMEDIATELY DELUGE
    CONTAINERS WITH WATER SPRAY FROM MAXIMUM DISTANCE UNTIL COOL, THEN
    MOVE CONTAINERS AWAY FROM FIRE AREA IF WITHOUT RISK.
Unusual Fire/Explosion Hazard:CONTAINER MAY RUPTURE DUE TO HEAT OF
    FIRE. MOST CONTAINERS ARE DESIGNED TO VENT CONTENTS WHEN THEY ARE
    EXPOSED TO ELEVATED TEMPERATURES.

==================  Accidental Release Measures  ==================

Spill Release Procedures:EVACUATE PERSONNEL. USE SELF-CONTAINED
    BREATHING APPARATUS WHERE NEEDED. SHUT OFF LEAK IF WITHOUT RISK.
    VENTILATE OR MOVE LEAKING CONTAINER TO WELL-VENTILATED AREA. TEST
    AREA, ESPECIALLY CONFINED AREA S, FOR OXYGEN CONTENT PRIOR TO
    PERMITTING REENTRY.

======================	Handling and Storage  ======================

Handling and Storage Precautions:USE ONLY IN WELL VENTILATED AREAS.
    CONTAINS NITROGEN AT EXTREMELY HIGH PRESSURE. CLOSE VALVE WHEN NOT
    IN USE AND WHEN EMPTY.
Other Precautions:AVOID DRAGGING,ROLLING OR SLIDING CYLINDERS.USE HAND
    TRUCK.STORE OUTSIDE.KEEP AWAY FROM HEAT,FLAMES AND COMBUSTIBLE
    MATERIALS.KEEP AWAY FROM HEAVY TRAFFIC AREAS.AVOID EXPOSURE TO SALT
    OR OTHER CORROSI VE CHEMICALS.REPLACE CAP WHEN NOT IN USE

=============  Exposure Controls/Personal Protection  =============

Respiratory Protection:USE SCBA IN OXYGEN-DEFICIENT ATMOSPHERES.
    CAUTION! RESPIRATORS WILL NOT FUNCTION. USE MAY RESULT IN
    ASPHYXIATION.
Ventilation:MECHANICAL (GENERAL) VENTILATION AND/OR LOCAL EXHAUST AS
    NECESSARY.
Protective Gloves:LEATHER WORK GLOVES.
Eye Protection:SAFETY GLASSES.
Other Protective Equipment:OXYGEN MONITORING EQUIPMENT TO TEST FOR
    OXYGEN DEFICIENT ATMOSPHERES. SAFETY SHOES FOR CYLINDER HANDLING.
Work Hygienic Practices:STANDARD HYGENIC PRACTICES.
Supplemental Safety and Health
HIGH PRESSURE GAS. USE PIPING AND EQUIPMENT DESIGNED TO WITHSTAND
    PRESSURES TO BE ENCOUNTERED.  MIXTURES: WHEN TWO OR MORE GASES ARE
    MIXED, THEIR PROPERTIES MAY COMBINE TO CREATE ADDITIONAL, UNEXPECTE
    D HAZARDS. OBTAIN AND EVALUATE THE SAFETY INFORMATION FOR EACH
    COMPONENT BEFORE YOU PRODUCE THE MIXTURE.

==================  Physical/Chemical Properties  ==================

HCC:G3
Vapor Density:0.967
Solubility in Water:NEGLIGIBLE
Appearance and Odor:COLORLESS, ODORLESS GAS.

=================  Stability and Reactivity Data  =================

Stability Indicator/Materials to Avoid:YES
UNDER CERTAIN CONDITIONS NITROGEN CAN REACT VIOLENTLY WITH LITHIUM,
    NEODYMIUM, TITANIUM, OZONE.
Stability Condition to Avoid:HIGH HEAT, OPEN FLAMES.
Hazardous Decomposition Products:NONE.

====================  Disposal Considerations  ====================

Waste Disposal Methods:VENT NITROGEN GAS SLOWLY TO A WELL VENTILATED
    OUTODOOR LOCATION REMOTE FROM WORK AREAS. DISCARD ANY PRODUCT,
    RESIDUE, DISPOSABLE CONTAINER IN FULL COMPLIANCE WITH FEDERAL,
    STATE AND LOCAL REGULATIONS.

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